. "Siege of Bukhara" . . . . . "Unknown" . "besieged the city of Bukhara" . . . "was taken" . "to take Bukhara" . . "besieged Bukhara" . . "destroyed" . "Bukhara" . . "Modern estimates range from 2,000 to 20,000" . "Mongol victory" . . "Modern estimates range from 30,000 to 50,000" . "Mongol Empire" . . "Siege of Bukhara" . "capturing and destroying" . . . . . "Khwarazmian Empire" .